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ObjectivesThe objective of this project is to address waterflood problems of the type found in CherokeeGroup reservoirs in southeastern Kansas and in Morrow sandstone reservoirs in southwestern Kansas.Two demonstration sites operated by different independent oil operators are involved in the project. TheNelson Lease (an existing waterflood) is located in Allen County, Kansas in the N.E. Savonburg Fieldand is operated by James E. Russell Petroleum, Inc. The Stewart Field (on latter stage of primaryproduction) is located in Finney County, Kansas and is operated by North American Resources Company.General topics to be addressed will be 1) reservoir management and performance evaluation, 2)waterflood optimization, and 3) the demonstration of recovery processes involving off-the-shelftechnologies which can be used to enhance waterflood recovery, increase reserves, and reduce theabandonment rate of these reservoir types.The reservoir management portion of the project will involve performance evaluation and willinclude such work as 1) reservoir characterization and the development of a reservoir database, 2)identification of operational problems, 3) identification of near wellbore problems, 4) identification ofunrecovered mobile oil and estimation of recovery factors, and 5) identification of the most efficient andeconomical recovery process.The waterflood optimization portion of the project involves only the Nelson Lease. It will bebased on the performance evaluation and will involve 1) design and implementation of a water cleanupsystem for the waterflood, 2) application of well remedial work such as polymer gel treatments to improvevertical sweep efficiency, and 3) changes in waterflood patterns to increase sweep efficiency.Finally, it is planned to implement an improved recovery process on both field demonstrationsites.Summary of Technical ProgressSavonburg Field ProjectTask II.1 - Water Plant DevelopmentSummary of work in last quarterThe water plant is working satisfactorily, however there are a few problems including, 1) probecontrols in both the raw water and clear water tanks were not functioning properly which also makestransfer of water difficult, 2) barium sulfate is still precipitating out, 3) capacity of the single bag filteris inadequate, and 4) power downtimes occurred due to the extreme weather.The probes were replaced with floating ball devices, which appear to be operating satisfactorily.The transfer pump was replaced with one using a larger motor. It was then determined that the capacityof the 2" transfer line had been reduced by scaling. The transfer pump was switched back to the 4"diameter transfer line and the bleach injection was restarted at that point. A larger overload unit wasinstalled for the transfer pump. The Murphy Hi-Low control for the injection pump was replaced.The removal-of suspended oil and solids have been successful, however the dissolved barium hascaused a problem by the formation of a barium sulfate scale. The resulting scale is more difficult toremove due to the absence of oil and other solids which in the past made the scale soft and removable.Progress is being made in reducing the barium content of the produced water before combinations of the